Mark a Slack update when a market signal appears
Ask Notis to check public sources on a schedule and react to a specific Slack message when the evidence meets your stated signal criteria.
Trigger
Recurring schedule
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Action
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Why this helps
A meaningful public signal can be overlooked when updates are scattered across websites and the team conversation.
- Make a qualifying signal visible on an existing Slack message.
- Keep the signal criteria explicit in the automation instruction.
- Avoid adding a new message for every scheduled check.
Setup
Build it in a few focused steps.
- 1Connect Bright Data MCP and Slack once in Notis.
- 2Create an automation in the portal or by telling Notis the outcome you need.
- 3Ask Notis to check the public sources and criteria you specify, then react to the identified Slack message only when the evidence qualifies.
- 4Choose a recurring schedule and where run reports should go.
- 5Test with a real source and message, then review whether the signal criteria are clear.
Questions about this workflow
What message can receive a reaction?
Your instruction must identify a Slack message that the connected account can access, including its conversation and timestamp when needed.
Can it decide what counts as a market signal?
Yes, if you describe the criteria in the automation prompt. Notis cannot infer a private baseline or threshold that you have not supplied.
Does this workflow create a new Slack post?
No. Its target action adds a specified emoji reaction to an existing Slack message.
When this happens · Trigger
Do this · Action
Supported Triggers and Actions
Notis builds workflows that link Bright Data MCP to Slack. A trigger fires from one place; an action lands in another.
Bright Data MCP triggers
Slack actions
Recurring trigger
Notis starts this workflow on a schedule, such as daily, weekly, or during business hours.
Set snooze duration
Deprecated: turns on do not disturb mode for the current user, or changes its duration. use `set dnd duration` instead.
Webhook trigger
Notis starts this workflow when an external tool or custom backend sends an HTTP request.
Add a custom emoji to a Slack team
Deprecated: adds a custom emoji to a slack workspace given a unique name and an image url. use `add emoji` instead.
Add an emoji alias
Adds an alias for an existing custom emoji in a slack enterprise grid organization.
Add a remote file
Adds a reference to an external file (e.g., google drive, dropbox) to slack for discovery and sharing, requiring a unique `external id` and an `external url` accessible by slack.
Add a star to an item
Stars a channel, file, file comment, or a specific message in slack.
Add call participants
Registers new participants added to a slack call.
Add emoji
Adds a custom emoji to a slack workspace given a unique name and an image url; subject to workspace emoji limits.
Add reaction to message
Adds a specified emoji reaction to an existing message in a slack channel, identified by its timestamp; does not remove or retrieve reactions.
Connect any two apps with Notis in the middle.
Bright Data MCP and Slack, or any other combination from 1,000+ integrations.
When this happens · Trigger
Do this · Action
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